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Brazil underwent a frequency conversion program to 60 Hz that was not completed until 1978. [14] In Mexico, areas operating on 50 Hz grid were converted during the 1970s, uniting the country under 60 Hz. [15] In Japan, the western part of the country (Nagoya and west) uses 60 Hz and the eastern part (Tokyo and east) uses 50 Hz.
Voltage, frequency, and plug type vary, but large regions may use common standards. ... 60 Hz 50 Hz [32] Conversion of 50 Hz distribution to 60 Hz is ongoing.
Often airplanes use 400 Hz power so a 50 Hz or 60 Hz to 400 Hz frequency converter is needed for use in the ground power unit used to power the airplane while it is on the ground. Airlines might also utilize the converters to provide in-air wall current to passengers for use with laptops and the like.
The Higashi-Shimizu Frequency Converter Station is operated by Chubu Electric Power Co. and is located at 677-3 Tanakake, Hirose-aza, Shimizu-ku, Shizuoka. It is fed via a 275 kV power line and a 154 kV power line. Its inverters operate at 125 kVDC and have a maximum transmission rate of 300 MW.
The station houses two converters, one of which opened in December 1977, [1] the other in 1992. The original 1977 converter was one of the first thyristor-based HVDC schemes to be put into operation in the world and used oil-insulated, oil-cooled outdoor thyristor valves supplied by Hitachi (60 Hz end) and Toshiba (50 Hz end). A special ...
The voltage and frequency of electric power differs between regions. In much of the world, a voltage (nominally) of 230 volts and frequency of 50 Hz is used. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other combinations exist, for example, 230 V at 60 Hz.
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